Structure of PDB 8ree Chain D

Receptor sequence

>8reeD (length=1330) Species: 83333 (Escherichia coli K-12)

LLKFLKAQTKTEEFDAIKIALASPDMIRSWSFGEVKKPETINYRTFKPER
DGLFCARIFGPVKDYECLCGKYKRLKHRGVICEKCGVEVTQTKVRRERMG
HIELASPTAHIWFLKSLPSRIGLLLDMPLRDIERVLYFESYVVIEGGMTN
LERQQILTEEQYLDALEEFGDEFDAKMGAEAIQALLKSMDLEQECEQLRE
ELNETNSETKRKKLTKRIKLLEAFVQSGNKPEWMILTVLPVLPPDLRPLV
PLDGGRFATSDLNDLYRRVINRNNRLKRLLDLAAPDIIVRNEKRMLQEAV
DALLDNGRRGRAITGSNKRPLKSLADMIKGKQGRFRQNLLGKRVDYSGRS
VITVGPYLRLHQCGLPKKMALELFKPFIYGKLELRGLATTIKAAKKMVER
EEAVVWDILDEVIREHPVLLNRAPTLHRLGIQAFEPVLIEGKAIQLHPLV
CAAYNADFDGDQMAVHVPLTLEAQLEARALMMSTNNILSPANGEPIIVPS
QDVVLGLYYMTRDCVNAKGEGMVLTGPKEAERLYRSGLASLHARVKVRIT
EYEKDANGELVAKTSLKDTTVGRAILWMIVPKGLPYSIVNQALGKKAISK
MLNTCYRILGLKPTVIFADQIMYTGFAYAARSGASVGIDDMVIPEKKHEI
ISEAEAEVAEIQEQFQSGLVTAGERYNKVIDIWAAANDRVSKAMMDNLQT
ETVINRDGQEEKQVSFNSIYMMADSGARGSAAQIRQLAGMRGLMAKPDGS
IIETPITANFREGLNVLQYFISTHGARKGLADTALKTANSGYLTRRLVDV
AQDLVVTEDDCGTHEGIMMTPVIEGGDVKEPLRDRVLGRVTAEDVLKPGT
ADILVPRNTLLHEQWCDLLEENSVDAVKVRSVVSCDTDFGVCAHCYGRDL
ARGHIINKGEAIGVIAAQSIGEPGTQLTMAAESSIQVKNKGSIKLSNVKS
VVNSSGKLVITSRNTELKLIDEFGRTKESYKVPYGAVLAKGDGEQVAGGE
TVANWDPHTMPVITEVSGFVRFTDMIDGQTITRQSSLVVLDSAERRPALK
IVDAQGNDVAQYFLPGKAIVQLEDGVQISSGDTLARIPQGGLPRVADLFE
ARRPKEPAILAEISGIVSFGKETKGKRRLVITPVDGSDPYEEMIPKWRQL
NVFEGERVERGDVISDGPEAPHDILRLRGVHAVTRYIVNEVQDVYRLQGV
KINDKHIEVIVRQMLRKATIVNAGSSDFLEGEQVEYSRVKIANRELEANG
KVGATYSRDLLGITKASLATESFISAASFQETTRVLTEAAVAGKRDELRG
LKENVIVGRLIPAGTGYAYHQDRMRRRAAG

3D structure

• PDB: 8ree Structural basis of sigma 54 displacement and promoter escape in bacterial transcription.
• Chain: D
• Resolution: 3.8 Å

Enzymatic activity

• Enzyme Commision number: 2.7.7.6: DNA-directed RNA polymerase.

Interaction with ligand

Site #	Ligand	Ligand chain	Binding residues on receptor (original residue number in PDB)	Binding residues on receptor (residue number reindexed from 1)	Binding affinity
BS01	dna	D	R278 R281 R1148 K1170 G1171 K1172	R275 R278 R1102 K1124 G1125 K1126
BS02	rna	D	P251 R322 R425 D462 D464	P248 R319 R422 D459 D461
BS03	dna	D	L120 R259 A261 R311 R346 A426 A791 Y795 E1327	L117 R256 A258 R308 R343 A423 A788 Y792 E1281
BS04	MG	D	D460 D462 D464	D457 D459 D461
BS05	ZN	D	C888 C895 C898	C885 C892 C895

Gene Ontology

Molecular Function

• GO:0000287 magnesium ion binding
• GO:0003677 DNA binding
• GO:0003899 DNA-directed 5'-3' RNA polymerase activity
• GO:0005515 protein binding
• GO:0008270 zinc ion binding
• GO:0016779 nucleotidyltransferase activity
• GO:0034062 5'-3' RNA polymerase activity
• GO:0046872 metal ion binding

Biological Process

• GO:0006351 DNA-templated transcription
• GO:0006352 DNA-templated transcription initiation
• GO:0006879 intracellular iron ion homeostasis
• GO:0009408 response to heat
• GO:0031564 transcription antitermination
• GO:0032784 regulation of DNA-templated transcription elongation
• GO:0036460 cellular response to cell envelope stress
• GO:0042128 nitrate assimilation
• GO:0044780 bacterial-type flagellum assembly
• GO:0046677 response to antibiotic
• GO:0048870 cell motility
• GO:0071973 bacterial-type flagellum-dependent cell motility
• GO:0090605 submerged biofilm formation
• GO:2000142 regulation of DNA-templated transcription initiation

Cellular Component

• GO:0000345 cytosolic DNA-directed RNA polymerase complex
• GO:0000428 DNA-directed RNA polymerase complex
• GO:0005737 cytoplasm
• GO:0005829 cytosol
• GO:0008023 transcription elongation factor complex
• GO:0016020 membrane

External links

• PDB: RCSB:8ree, PDBe:8ree, PDBj:8ree
• PDBsum: 8ree
• PubMed: 38170755
• UniProt: P0A8T7|RPOC_ECOLI DNA-directed RNA polymerase subunit beta' (Gene Name=rpoC)